Journal article
Developing a food waste biorefinery: Lactic acid extraction using anionic resin and impacts on downstream biogas production
Chemical Engineering Journal, Vol.431(Pt. 3), Art. 133243
2022
Abstract
Coupling lactic acid (LA) production with food waste (FW) anaerobic digestion (AD) can facilitate the next generation biorefinery to increase revenue and economic viability of FW AD. For this, LA should be effectively extracted from complex fermentation broths with minimal adverse effects on subsequent AD to maximise economic benefit. This study evaluated LA recovery by adsorption using a polymeric resin (BA765), not previously tested for LA, to explore adsorption capacity and kinetics. Furthermore, biochemical methane potential (BMP) tests were utilised to assess the effect of LA extraction on subsequent AD by measuring biogas production from the solid and liquid extraction residues. Optimal adsorption conditions yielded a maximum capacity of 0.21 gLA·g−1resin from pure solutions at pH 2–4, which was insensitive to temperature. However, real mixed fermentation broth impurities reduced LA uptake by 37%. BMP tests showed that the solid and liquid extraction residues had significant methane potential, with only a 21% reduction in overall methane yield compared to the raw fermentation broth prior to LA extraction. LA production outweighed the loss in methane energy in terms of relative value and indicated a FW biorefinery concept could be commercially attractive and technically feasible.
Details
- Title
- Developing a food waste biorefinery: Lactic acid extraction using anionic resin and impacts on downstream biogas production
- Authors/Creators
- C.H. Buhlmann (Author/Creator) - Murdoch UniversityB.S. Mickan (Author/Creator) - The University of Western AustraliaS. Tait (Author/Creator) - University of Southern QueenslandP.A. Bahri (Author/Creator) - Murdoch University
- Publication Details
- Chemical Engineering Journal, Vol.431(Pt. 3), Art. 133243
- Publisher
- Elsevier
- Identifiers
- 991005543526807891
- Copyright
- © 2021 Elsevier B.V.
- Murdoch Affiliation
- School of Engineering and Energy
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Metrics
48 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.87 Paper & Wood Materials Science
- 3.87.1386 Microbial Bioproduction
- Web Of Science research areas
- Engineering, Chemical
- Engineering, Environmental
- ESI research areas
- Engineering